
Cross-Platform Development Services




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What Cross-platform Development Services You Get?
Custom Cross-Platform App Development
You get an app for both iOS and Android, fully tailored to provide a native user experience. It can Kotlin Multiplatform, Compose Multiplatform, Flutter, or React Native once we together determine which is most suitable for your needs.
Migration from Native to Cross-Platform
You have an app already written natively for iOS or Android and want to convert it to a cross-platform technology? Our team will do that for you and ensure your app runs smoothly, saving you time and money by eliminating the need for separate iOS and Android teams.
UI/UX Design
You will get a design aligned with your brand, increasing your cross-platform app awareness. Our team carefully listens to your plans and creates a UI/UX design based on target audience research, tailoring it to boost user satisfaction and engagement.
Cross-Platform Consulting
Need help with your cross-platform app development? Our team is here to carefully listen to your plans and vision and help you find the right solution together. Detailed discussions and strategic planning will provide you with valuable insights tailored to your multiplatform app.
Maintenance and Support
Our cross-platform app maintenance services are designed to ensure your app remains responsive, secure, and fully functional over time. With ongoing cross-platform support services, you are just a phone call or email away.
The Way We Work Together
You can hire an entire team or individual developers to work with your in-house team. Project management and decision-making remain in your hands. This is an ideal choice if you already have a project and a plan but need additional resources to bring it to life.
You get full-service mobile app development, from developing your idea to launch. Our team creates a plan and delivers solutions for your startup vision. We take ownership of the project, treating your app as our own, and delivering a product that helps your business succeed.
We'll Recommend the Best Migration Technology
Ideal when you need to stay within budget while keeping native UI flexibility.
KMP allows you to share business logic across iOS and Android while still using native UI components,speeding up development without sacrificing performance.
Perfect for teams that want a modern, shared UI and business logic in one codebase.
CMP enables you to build beautiful, responsive interfaces for both iOS and Android, reducing maintenance and accelerating releases.
If not knowing what to choose, here you can get more info about KMP vs CMP.
Best for apps requiring a fully shared UI across iOS and Android, ensuring fast cross-platform development with near-native performance and a rich widget library.
A solid choice for projects that need quick time-to-market and strong community support,offering
a balanced mix of speed, performance, and reusable components.
Apps We Built For Clients
All Technologies
We Work With
And Yes, We’ve Probably Worked In Your Industry
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Launch healthcare apps patients actually use, fast and secure.
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Turn AI ideas into apps that wow your users.
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Keep learners engaged with interactive and easy-to-use apps.
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Boost user engagement and loyalty with beauty apps.
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Make every event easy, from schedules to ticketing.
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Connect customers to services instantly.
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Build an app that fits your industry’s unique challenges.
Our Development Process
We start by listening to your goals and specific needs, ensuring we understand your app’s vision clearly.
Based on the gathered information, you get a detailed project plan, including a precise timeline, cost estimation, and defined milestones, ensuring full transparency.
Our team begins the design and development phase, keeping you involved at every stage with regular progress updates and the opportunity for feedback to ensure alignment with your goals.
Before launch, the app goes through rigorous testing to ensure it meets the highest standards of functionality, performance, and user experience, eliminating bugs or issues.
Once everything is ready, we take care of the deployment process, making sure it’s properly set up on app stores or other platforms.
After launch, we offer continuous support to ensure your app stays up-to-date and runs smoothly, adapting to your needs over time.
FAQ
Aetherius provides senior cross-platform engineers for team augmentation and full-cycle development engagements across KMP, Compose Multiplatform, Flutter, and React Native. We work with companies that need developers who can cover both iOS and Android from a single codebase, integrate into existing teams, and deliver reliably in front of enterprise clients.
In most cases, we present pre-vetted senior candidates within 5-10 business days. Our developers are experienced in jumping into existing cross-platform codebases and contributing without a long ramp-up period. If a specific profile isn't available for your timeline, we tell you upfront.
It depends on your existing codebase, team structure, and what your client actually needs:
- KMP (Kotlin Multiplatform) — best when you want to share business logic while keeping fully native UI on both iOS and Android. No performance trade-offs, no UI compromises.
- Compose Multiplatform — best when you want shared UI and business logic in one codebase, with a modern, consistent interface across platforms.
- Flutter — best when UI consistency and fast cross-platform delivery are the priority, with near-native performance.
- React Native — best for projects that need quick time-to-market and have existing JavaScript/TypeScript expertise on the team.
Not sure which fits your project? Get in touch and we'll recommend based on your actual constraints.
Aetherius specializes in cross-platform mobile development with a strong focus on KMP. We maintain a pool of available senior engineers across KMP, Flutter, and React Native, and can present matching profiles within 5-10 business days based on your exact stack and project context.
Every developer goes through technical screening that covers framework-specific architecture knowledge, code quality, and the ability to work independently in complex, enterprise-grade codebases. We don't label mid-level developers as seniors. If a profile doesn't precisely match your requirements, we say so before you meet them.
Yes. Aetherius developers are experienced in white-label delivery; they align with your workflows, communication standards, and team culture. They operate as your team members, not as an external vendor.
It depends on how much control and involvement you want:
- Team Augmentation — senior cross-platform developers embedded directly in your team, fitting your existing workflows. Best for long-term capacity needs.
- Outsourced Team — a full team managed by us, focused on delivery. Best when you want results without management overhead.
- Part-Time Support — flexible part-time experts who contribute immediately. Best for ongoing needs that don't require full-time commitment.
- Sprint-Based — developers added per sprint, agile-ready. Best when scope fluctuates and you need to scale up or down fast.
Pricing depends on the framework, seniority level, and engagement model. We don't publish flat rates because every project is different, but pricing is always transparent with no hidden fees. Use the Aetherius Cost Calculator for a custom estimate, or get in touch and we'll break it down based on your actual requirements.
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